Night and Day by Cole Porter is played in the key of Eb at a advanced difficulty level, originally released in the 1930s. It uses 4 chords — Eb Cm Fm7 Bb7 — arranged in the I-vi-ii-V progression.
About the I-vi-ii-V progression
The I-vi-ii-V is a "circle progression" where each chord's root drops by a fourth. This creates one of the strongest harmonic movements in Western music. It's the backbone of doo-wop, jazz standards, and countless mid-century ballads.
Playing in the key of Eb
Eb major uses Eb, Ab, and Bb — all barre chords. Capo the 3rd fret and use C-major shapes to make this key approachable.
Related songs
More songs in the key of Eb
More songs using the I-vi-ii-V progression
Learn to play Night and Day by Cole Porter on guitar. It sits in the key of Eb and uses the I-vi-ii-V progression with the chords Eb Cm Fm7 Bb7.